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12957384 = 2331149081
BaseRepresentation
bin110001011011…
…011011001000
3220101022012010
4301123123020
511304114014
61141415520
7215064426
oct61333310
926338163
1012957384
117350090
12440a5a0
1328b89bb
141a14116
15120e359
hexc5b6c8

12957384 has 32 divisors (see below), whose sum is σ = 35339040. Its totient is φ = 3926400.

The previous prime is 12957361. The next prime is 12957389. The reversal of 12957384 is 48375921.

12957384 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12957389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24277 + ... + 24804.

It is an arithmetic number, because the mean of its divisors is an integer number (1104345).

Almost surely, 212957384 is an apocalyptic number.

It is an amenable number.

12957384 is an abundant number, since it is smaller than the sum of its proper divisors (22381656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12957384 is a wasteful number, since it uses less digits than its factorization.

12957384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49101 (or 49097 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 12957384 is about 3599.6366483299. The cubic root of 12957384 is about 234.8762529410.

The spelling of 12957384 in words is "twelve million, nine hundred fifty-seven thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 49081 98162 147243 196324 294486 392648 539891 588972 1079782 1177944 1619673 2159564 3239346 4319128 6478692 12957384